package xiaowang;

public class Program {
		public  static void main(String[] args){
				float money = 0;
				int count = 0,day = 0;
				while(true){
						money += 2.5;
						count++;
						day++;
						if (money % 5 == 0 || count == 5){
							count = 0;
							money -= 6;
						}
						if (money >= 100)
						{
							break;
						}
				}
				System.out.println(day);
		}
}
